Tacos

1 dozen taco shells
1/2 onion, chopped
1 tablespoon vegetable oil
1 pound ground beef
2 cloves garlic, crushed
1/4 teaspoon cumin
1/4 teaspoon pepper
1/4 teaspoon salt
Lettuce, shredded
Cheddar or longhorn cheese, grated
Tomatoes, chopped
Ripe olives, chopped
Taco sauce

Sauté onion and crushed garlic in hot oil. Add ground beef and brown. stir and simmer over low heat for 15 minutes; drain.